1 // { dg-options "-Wno-deprecated" }
2 // Copyright (C) 2003-2024 Free Software Foundation, Inc.
4 // This file is part of the GNU ISO C++ Library. This library is free
5 // software; you can redistribute it and/or modify it under the
6 // terms of the GNU General Public License as published by the
7 // Free Software Foundation; either version 3, or (at your option)
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
15 // You should have received a copy of the GNU General Public License along
16 // with this library; see the file COPYING3. If not see
17 // <http://www.gnu.org/licenses/>.
20 #include <testsuite_hooks.h>
22 class Buf
: public std::strstreambuf
25 Buf(const char* p
, std::streamsize n
)
26 : std::strstreambuf(p
, n
)
29 int_type
pub_pbackfail(int_type c
= traits_type::eof())
38 typedef std::strstreambuf::traits_type Traits
;
39 const char str
[] = "a\xff";
43 Traits::int_type a
= Traits::to_int_type('a');
44 VERIFY( buf
.sbumpc() == a
);
45 VERIFY( buf
.sungetc() == a
);
46 VERIFY( buf
.sbumpc() == a
);
47 VERIFY( buf
.sputbackc('a') == a
);
48 VERIFY( buf
.sbumpc() == a
);
49 VERIFY( buf
.pub_pbackfail() != Traits::eof() );
50 VERIFY( buf
.sbumpc() == a
);
51 VERIFY( buf
.pub_pbackfail(a
) == a
);
54 Traits::int_type xff
= Traits::to_int_type('\xff');
55 VERIFY( buf
.sbumpc() == xff
);
56 VERIFY( buf
.sungetc() == xff
);
57 VERIFY( buf
.sbumpc() == xff
);
58 VERIFY( buf
.sputbackc('\xff') == xff
);
59 VERIFY( buf
.sbumpc() == xff
);
60 VERIFY( buf
.pub_pbackfail() != Traits::eof() );
61 VERIFY( buf
.sbumpc() == xff
);
62 VERIFY( buf
.pub_pbackfail(xff
) == xff
);